Comb



FIG. 1 is a front view of a comb showing our new design, a rear view being a mirror image thereof;

FIG. 2 is a left side view of the comb;

FIG. 3 is a right side view of the comb;

FIG. 4 is a top view of the comb; and,

FIG. 5 is a bottom view of the comb.

The broken lines illustrate portions of the comb and form no part of the claimed design. 

CLAIM The ornamental design for a comb, as shown and described. 